Quote:
Originally Posted by Purdy Swoft
I've had REAL good luck running dual updrafts with model B carburetors . I won't say that it is the fastest setup but if the carbs are good, most can just bolt them on and run without ANY mods to the carbs . Updraft carbs don't flood like downdrafts and you get to keep the original style choke and GAV controls . I've seen dyno. tests that showed a 10 horsepower increase with dual updraft carbs . Depending on tuning and engine condition , A person can expect to pick up a few more MPH when using dual carbs . Just my experience .
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I have been told by several guys who run dual updraft "A" or "B" carbs that they actually get better gas mileage than with a single updraft. This sounds counter-intuitive to me yet they insist that it is true.